To provide a lubricant composition for a sewing machine having excellent lubricity and to prolong the life of various kinds of sliding members.
A lubricant is sealed into a clearance of a bearing surface opposite through the clearance to a sliding surface of a member to be supported which is to be supported such as a needle shaft 7 and a bearing part 8. The lubricant composition for the sewing machine is obtained by compounding a base oil of the lubricant with 0.01-10 wt.% of aluminum oxide having 10-1,000 nm particle diameter and contains 0.1-15 wt.% of one or more kinds of oil-soluble additives selected from an organometallic compound, a boron compound, a phosphorus compound and a sulfur compound. The lubricant composition for the sewing machine may be a grease containing a thickener in addition to the oil-soluble additives. In this case, the amount of the thickener is preferably 10-20 wt.% and the thickener preferably has thixotropy.
COPYRIGHT: (C)2005,JPO&NCIPI
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